Wednesday, 13 April 2016

Introduction to Wafer Bonding System

Silicon wafer bonding is a procedure that permanently or temporarily joins two substrates or wafers. This method helps in preventing slipping, breakage, warping and die fly-off during wafer polishing, dicing, grinding, lapping operations and head mounting.

Wafer bonding is basically used:

  • To manufacture SOI (Silicon on Insulator) wafers. 
  • To generate intricate 3D cavities and structures, this crafts device functionality. 
  • In packaging methods to make close environments (vacuum packages for optical, resonators and IR procedures). 
  • In integration technology for combining two chips fabricated discretely (MEMS+CMOS). 

Silicon Wafer Bonding System:

Easy to handle wafer grip thin film adhesive is positioned between the wafer and mounting base or substrate. It can be secured by using either the high quality bonder or a hot plate for enhanced processing repeatability and cycle time. By means of a uniform thickness,  wafer bonding agent bonds the 4” silicon wafers for preserving the highest adhesion for after bonding procedure. A heated solution minimally dissolves the wafer glue, raising the high quality die yield without disturbing the production routines.

Silicon Wafer Bonder:

Use of the wafer bonder for mounting substrate to wafer enhances repeatability and bond quality for improving the process time during polishing, dicing or lapping.


Thin Film wafer Adhesive:

The thin film advanced composite film resin is engineered to bond wafers optics, thin film heads and other wafer substrates during grinding, dicing, polishing and lapping.